Samura reported,

The Prophet ﷺ said, "Last night I saw two men who came to me, took me up the tree, and brought me into a house more beautiful and excellent than any I had ever seen. They said, 'This house is the house of the martyrs.'"

Bukhari 2791

Sahih

حدثنا موسى حدثنا جرير حدثنا أبو رجاء

عن سمرة قال

النبي ﷺ رأيت الليلة رجلين أتياني فصعدا بي الشجرة فأدخلاني دارا هي أحسن وأفضل لم أر قط أحسن منها قالا أما هذه الدار فدار الشهداء

البخاري 2791صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Bukhari
Book
Jihad and expeditions
Chapter
Ranks of those who strive in the cause of Allah, it is said "this is my path" and "this is my way"
Numbering
Darussalam 2791
Bukhari 2791